Antivibratory gas-burner.



No. ?77,501. PATENTED DEU. 13, 1904. .I. FRANKLIN.

ANTIVIBBATORY GAS BURNER.

APPLIOATIOH TILED APR. 4, l904.

NO MODEL thirren STATES Patented December 13, 1904.

JOHN FRANKLIN, OF NORVVOOD, OHIO.

ANTIVIBRATURY GAS-'BUFiNEH.

SPECIFICATION forming part of Letters Patent No. '777,501, dated December 13, 1904:.

Application filed April 4:, 1904. Serial No. 201.431. (No model.)

To (Jill whom, it THflZ/ cmbeern:

Be it known that I, JOHN FRANKLIN., a citizen of the United States of America, and a resident of Norwood, in the county ot' Hamilton and State of Ohio, have invented certain new and useful Improvements in Antivibratory (as-Burners, of which the 'following is a speciiication.

This invention relates to certain improvements in antivibratory gasburners such as are adapted 'for use in connection with incandescent mantles and are provided with means 'for neutralizing or overcoming the effects of vibration of the building, post, or other support on which the burner is held whereby the liability of damage to the frail mantles from the transmission of such vibration thereto is overcome; and the object of the invention is to provide a burner of this general character having means ot' an improved and simplified nature for absorbing and neutralizing such vib'atio' without in any way interfering with the eflciency of the burner itself when lighted.

The invention consists in certain novel features of the Construction and combinations and arrangements of the several parts of the improved antivibratory gas-burner whereby certain important advantages are attained and the device is rendered Simpler, eheaper, and otherwise better adapted and more convenient 'or use, all as will be hereinatter fully set forth.

The novel 'i'caturesof the invcntion will be caretully deiined in the claims.

In the accompanying drawings, which serve to illustrate my invention, Figure '1 is a sectional view showing a gas-burner constructed according to my invention, and Fig. 2 is a transverse section taken through the improved bnrner in the plane indicated by line al (1/ in Fig. 1 and showing certainfeatures of the improved antivibratory means thereo'f to be hereinat'ter particularly explained. Fig. 3 is a sectional view showing certain parts of the improved burner detached from each other and in position for connection. Fig. 4 is a View similar to Fig. 1, but showing a modified 'orm of the improved antvbratory burner;

and Fig. 5 is a similar view showing still another modified form of the burner. Fig. 6 is an enlarged sectional detail view showing one of the elastic devices embodied in the burner shown in Fig. 5 for neutralizing and absorbing the vibration.

As shown in the views, 1 indicates a valve member located at the base of the improved burner and interiorly screw-threaded for connection with a gas-supply'pipe. (Not shown.) The member l is also provided with external screw-threads :t'or engagement in eorrespon ling threads provided inside a shell 2, and the parts land 2 have commu'icating gas-passages, the member l having a valve at its upper part adapted for movement when said member is turned toward or away from a seat produced at the diseharge end of the passage in the shell 2, whereby it will be seen that by turning one of the parts land 2 relatively to the other the ilow ot' gas to the burner 'from the sup1.ly-pipe may be conveniently controlled.

The members or parts 1 and 2 :form a support 'for the burner, the shell 2 being externally screw-threaded, as shown at 7, and being adapted to screw through a central opening 6, produced in a disk or plate 5, which constitutes the base or lower member of the antivibratory means of the burner, and above said base plate or disk 5 is located a bell or deme-like member 8, the lower edge ot' which is provided with an annular outwardly-extended tiange 9 oi" equal diameter with the disk or plate 5.

The bell or dome-like part or member 8 is, as shown on the diawings so rounded as to be contracted at its upper part., and 'from the said centi-acted upper part thereo't' is extended a tubular extension 10, which is alined with and arranged above the diseharge-oper ing at the top of the regulating-shell 2, and on the tubnlar extension 10 ot' the member 8 is supported the lower tubular portion 3 ol the burner-casing 3, the upper part of which is formed in the usual way with openiugs for discharge of the mixed gas and air to be burned and is made expanded, so as to produce a suction tending to draw such mixed air and gas upwardly through the tubular extension 10 of member 8, while the part 3 of 1 said burner-casing 3 is made in a diameter to permit it to be freely slipped down over the extension 10. The upper part of the casing 3 is also herein shown as provided with a eentral mantle-support; but I am not limited to the employment of this arrangement.

The exteriorly screw-threaded upper part of shell 2 is extended above the top surface of disk or plate and on it screws the iuteriorlyscreW-threaded lower end 11 of the mixingtube 12, which is provided with openings in its sides, as seen at 13, for admission of air with the gas discharged from the shell 2 within said tube, the upper part of said mixingtube being preferably made conical and being gradually contracted above the openings 13 and being extended within the space or chamber14, produced within the shell 8, and having its contracted upper end arranged at the base of the tubular extension 10 of the shell, so as to permit it to discharge the mixed air and gas into said extension for supply to the burner-casing above.

The shell or member 8 is elastically sustained above and out of contact with the plate or disk 5 in such a way as to prevent vibration of the gas-supply pipe or other support, which will ot' course be communicated to the supporting members 1 and 2 and to plate or disk 5 and mixing-tube 12 from being transmitted to the burner-casing 3, whereon is sustained the frail incandescent mantle, and said member 8 is so supported above the plate or disk '5 as to provide between the said plate or disk and the annular edge flange 9 at the base of member 8 an annular opening 15, through which air is adapt'ed to be supplied to openings 13 in mixing-tube 12 and also to the space 14 iu side shell 8 for admixture with the gas flowing through the mixing-tube and through the extension 10 of the shell or member 8. The contracted upper end of the mixing-tube 12 is also made of less diameter than the extension 10, so as to provide around said mixing-tube an air-passage through which air may flow upward into extension 10 from the space 14 within the shell or member 8 under the draft created above the burner-casing 3.

For elastically sustainng the shell or member 8 above the plate or disk 5 I provide, as shown in Figs. 1, 2, and 3, a plurality of elastic fiat metal springs 16, which are fol-med 'rom elastic strips centrally bent or fiexed to produce two arms on each such strip, the respective arms of each such strip being extended below and above the edge portions of plate or disk 5 and of the edge ange 9 of shell or member 8 and being held to said parts by means of screws 17, as clearly shown in the drawings. p i

As shown in the drawings, there are four of the strips 16 employed 'or elastically sus- `to the mantle.

taining member or shell 8 above plate or disk 5, and these strips are arranged equidistant one to another; but it will be evident that a greater or less number of such strips may be employed for the purpose.

The Construction of the improved burner as above set forth is extremely simple and inexpensive and is adapted to efiectively prevent the transmission of vibration from the burner-support to the burner-easing on which the frail incandescent mantle is supported, so that the life of the mantle is greatly increased; and this type of burner is permitted to be used in situations where it would otherwise be impossible so to employ it, and it will also be seen that the device is of such a nature as not to interfere with the efiiciency of the burner in any way, since the discharge end of the tapered mixing-tube 12 is extended across the space 15 between the members or parts 8 and 5 and serves to effectually prevent escape of gas at said space and said mixing-tube is also arranged With its upper end at such a height as not to engage the walls of shell 8 or its extension 10, so that vibration of the burnersupport cannot result in shock to said shell 8 or its extensions such as might cause damage The space 14 within the shell or member 8 is also eontracted toward its upper part, so as to insure the flow of the air upward around the miXing-tube 12 and into the shell extension 10, so that the proper admixture of air with the gas is maintained at all times when the burner is lighted, and the conical form of the mixing-tube serves to produce within the extension 10 of shell 8 crossing currents of air and gas, such as are well adapted to thoroughly and intimately mix the gas and air before it is supplied to the expanded upper part of the burner-casing.

From the above description it Will be seen that the improved burner is especially well adapted for use, since it prevents the transmission of vibration and shock from the support to the burner-casing, and consequently increases the life of the mantle sustained above said burner-casing, and, further, in that its antivibratory means is of such a nature as to interfere in no way with the proper operation of the burner and does not permit the escape of gas at the space which must necessarily be provided for the play of the elastically-conneeted members 5 and 8.

It Will also be obvious from the above description that my invention is capable of some modification as to the form and arrangement of the several parts of the improved burner without departure from the principles and spirit of the invention, and for this reason I do not wish to be understood as limiting myself to the preoise form and arrangement of the several parts herein set forth in carrying' out my invention in practice. For example,

in some cases the structure shown in Fig. 4 may be advantageously employed.

In this IOO IIO

:form of the burner the elastie strips 16 are omitted and are replaced by a spiral spring 18 of suitable tension arranged between the member and flange 9, with its spiral turns spaeed apart to permit entry of air at space 15. For holding the spiral spring 18 in position one end 19 is bent at an angle and passed through and clenehed or otherwise seeured in fiange 9, while the opposite end ofsaid spring is reversely bent and passed through an opening in disk or plate 5 and clenched or otherwise Secured thereto by which means the several parts are connected without intert'ering in any way with the elastie function of spring 18. In other cases the structure shown in Figs. 5 and 6 may be advantageously employed in which Construction the springstrips 16 are replaced by spiral springs 24:, of small diameter, interposed between disk 5 and Ilange 9, with ends 19 and 20 passed through the respective upper and lower members and clenehed for attachment of the parts. Inside the spiral springs 2 the member 5 and [range 9 are provided with hollow portions 22 and 23, respectively arranged for teleseopie engagement one within the other to permit the desired movement of the disk 5 without transmittingits movement to the parts of the burner above and at the same time to steady the spring-s sufliciently to prevent them from falling over laterally when the weight of the burner and connected parts is brought to bear upon them. In each of these struetures the principle is the same as in Fig. 1, and, as shown in Figs. 4: and 5, the fiange 9 is 'ormed at its edge with a downwardly-extended part 21, to engage outside of the springs and hold i the same in relation to a certain extent.

Having thus described my inventio'u what I claim, and desire to secure by Letters Patent, is-

1. In a device ot' the character set torth, the combination of a base member having a gas-passage therethrough, an upper member provided with an eularged deme-like lower portion having an outwardly-extending tiange thereon, a reduecd extension 'formed upon the upper portion of the upper member, resilient means supporting the upper member above the base member, and a substantially conical tube having its upper portion eontracted and communicating with the gas-passage of the lower member and being extended across the space between the upper and lower members to a point adjacent the base oi? the reduced extension ol" the upper member, substantially as described.

2. In an antivibrating gas-burner, the combination with a lower member, of an upper member provided with an enlarged domedike upper portion, and upwardly-extendediiange portion formed at the base of the enlarged portion of said upper membea teleseoping means carried upon the lower 'face of the upper member and upper face of the lower member, and series of resilient members surrounding the last-named means and in engagement with the upper and lower members to resiliently support one above the other, substantially as described.

3. Ina device of the character described, the eombination with a support, of a baseplate mounted thereon having a gas-passage therethrough, a series of hollow members projecting from the upper :face thereof, a substantiall y dome-shape;l shell provided with an outward1y-extending flange at its lower portion, and a reduced extension at its upper portion, a series of means toi-med upon said llange adapted 'for telescopie engagement with the members projeeting from the plate a tube extending across the space between the plate and the shell, the upper end thereof lying adjaeent the reduced extension ol" the shell, and resilient members surrounding the telescoping means of the shell and plate, substantially as described.

4. in a device ol" the character described, comprsing two members having gas-passages spaeed apart 'for the admissiou of air therebetween, the upper member being provided with an cnlarged donne-like portion at the lower end oi? its gas-passage, a tube mounted upon the lower member and eommunicating With the gas-passage oi' the upper member, telescoping means earried between the upper and lower members and resilient supporting means surrounding the telescoping means and resiliently su1:1:orting the upper and lower members in spaeed position, substantially as described.

Signed at Uincinnati, Ohio, this Zd day of April, 190%.

JOHN FHANKLIAN.

Ntnesses JOHN E'ms JoNcs, L. .M. .louns.

IOO 

